How to automatically delete excess backups?

I'm evaluating True Image Home 2010 and so far I like it a lot. One thing I don't understand, though, is how consolidation works. I'm generally going to do a complete system backup ("My Disks") every night, and then have the system shut down. I'd like to just keep the most recent 2 backups. I assumed if I selected 2 under "Number of backups exceeds" under "Automatic consolidation" when defining the backup task, True Image would delete the oldest after completing a backup that brought the total to 3. Instead, it's not deleting anything. The only more-detailed description of consolidation I've been able to find (for True Image Home 2009), says it will combine excess backups into one. This makes sense for differential and incremental, but not for complete backups; and it's not doing that for me anyway (don't want it to).

Is there any way to get the result I want, or do I just have to manually delete the excess backup every day?

Acronis support had this to say about consolidation, which didn't help, and has responded to a request for clarification:

> However, temporary files are created and one extra file is created to
> detect the quota violation. Therefore there can be more number of
> backup files present at a given point of time.